我有一个大文本文件(> 60GB),我想从其中删除某些行。
文本文件包含:
352_0M, 352_1M, 0.913
500_1F, 452_0M, 0.500
870_0M, 400_1F, 0.980
601_1F, 470_0M, 0.630
845_0M, 900_1M, 0.456
100_1F, 250_0F, 0.123
...
我想删除第一列或第二列或两者中所有包含“ F”字母的行。预期的输出是:
352_0M, 352_1M, 0.913
845_0M, 900_1M, 0.456
如何在python中做到这一点?
with open('input_file','r') as inf:
with open('output_file','w') as outf:
for line in inf:
if not any('F' in x for x in line.split(',', 2)[:2]):
outf.write(line)